Hi all! I build reports for a particular client who prefers Quark. So I use it. For years, I've been building the reports using Quark and importing eps charts. The charts are created dynamically online... then I edit them and save them as eps files. Years ago, Quark wouldn't import .ai files... so I got into the habit of saving them as eps files (RGB). I recently realized that Quark can now import .ai files. So I did. The illustrator charts are identical... but when I import an eps vs an .ai file, then create a pdf... the colors look different.

So is this a Quark issue? An Illustrator issue? Or a pdf issue? Thanks...

First, what's different about the color? You used to build files with placed Illustrator .eps files, now you are using .ai files, what's different about the .ai files? Since the only thing that changed was the use of native Illustrator files vs. Illustrator .eps files, it's probably not the PDF. Not Quark. Something about the .ai files, I suspect.

Its possible that it is a color profile issue. Do you calibrate your monitor? Or if the ai file is from someone else do they calibrate their monitor. I am not sure but I think eps is old enough that it does not include the profile where the ai file will.